Accident brake appliance.



' M. E. TROUTT. ACCIDENT BRAKE APPLIANCE. APPLICATION FILED EH34, 1910.

Patented Nov. 15,1910.

MARTIN E. TROUTT, OF FORT WORTH, TEXAS, ASSIGNOR OF ONE-THIRD T0 JERRYHARWELL, 0F FORT WORTH, TEXAS.

nccinnnr BRAKE APPLIANCE.

Specification of Letters Patent.

Patented Nov. 15, 1910.

To all whom it may concern:

Be it known that I, MARTIN E. TROUTT, a citizen of the United States,residing at Fort Worth, Texas, have invented certain new and usefulAccident Brake Appliances, of which the following is a specification.

My invention relates to devices for applying the brakes of a train incase of accident,

and the object is to provide devices which will be automaticallyactuated to release the air of a train pipe in case of accident and thusapply the brakes throughout the train. This invention relates moreparticularly to devices to be actuated by coming in contact with therails of a railway in case of derailment.

Another object is to protect the brake applying devices themselves sothat the brake applying devices will be removed to places of safetyafter the appliance of the brakes and still hold the brakes applied.

Other objects and advantages will be fully explained in the followingdescription and the invention will be more particularly pointed out inthe claims.

Reference is had to the accompanying drawings which form a part of thisapplication and specification.

Figure 1 is a side elevation of a truck with the brake appliancesmounted thereon. Fig. 2 is a front elevation of a car wheel, showing therelative position of the brake appliances. Fig. 3 is a detail elevationof the improvements, shown on a larger scale. Fig. 4; is a verticalsection of the release valve, showing the manner of operating the same.Fig. 5 is a plan of the devices. Fig. 6 is a detail view of the guidingrod. Fig. 7 is a detail view of the arm for elevating the actuatingmember.

Similar characters of reference are used to indicate the same partsthroughout the several views.

The drawings illustrate one way of mounting the brake appliances. Aplate 1 is mounted on the arch bars 2 of the car truck by means of bolts3, the plate 1 having slots 1 therein so that the plate 1 can bevertically adjusted. A valve 5 is mounted on the plate 1 and providedwith a plunger head 6 movable therein. A flexible pipe 7 is connectedwith the valve 5 below the head 6 and the head 6 is supported above thepipe connection by a spiral spring 8. The pipe is provided with a cock 9and is connected with the train pipe 10. The head 6 is provided with astem 11 pivotally connected thereto. The stem 11 is actuated by a lever12 which is pivotally mounted or fulcrumed on the top of the valve 5.The lever 12 is actuated by a vertically movable rack 13. The rack 13has a dove-tail connection 1 1 with the plate 1, the plate thus servingas a guide and means for holding the rack-bar 13 in operative position.The bar 13 carries an arm 15 which normally extends in front of the carwheel above the railway rail. The teeth of the bar 13 en gage the end ofthe lever 12. In case of derailment, the car wheel drops down and thearm 15 strikes the rail. 'This forces the bar 13 upwardly and thusraises the end of the lever and depresses the head 6 below the pipeconnection of pipe 7. This will apply the brakes or cause an applicationof the brakes. Means are provided for elevating the bar 13 still higherto prevent the same from being broken. mounted on the plate 1. A pivoted.clutch 17 engages the rod 16, the rod 16 being cut away at 18 toreceive the clutch.

The clutch 17 is pivotally connected to apivoted bar 19 and the bar 19is pivotally mounted on the plate 1. The bar 19 carries an arm 20 whichprojects behind the rod 16 and a pawl 21 is pivotally connected to thearm 20. The pawl 21 engages a shoulder 22 on the rack bar 13. A spiralspring 23 is mounted on the rod 16 and is normally held compressed bythe clutch 17. The rack bar 13 carries a forked arm 24 which engages therod 16 and slides thereon when the rack bar 13 is elevated. The brakesare applied in the manner above stated, and in order to prevent the arm15 from being broken, the rack is further elevated by the spring 23which engages the arm 24 as the clutch 17 is shoved out of engagementwith the rod 16. The shoulder 22 of the rack bar 13 engages the pawl andthe pawl 21 moves the bar 19 backwardly, carrying the clutch 17. Thespring 23 will elevate the arm 24 and the rack bar 13. The lever 12 willengage the teeth on the rack bar successively and hold the same atwhatever height the rack bar be raised.

A rod 16 is The mechanism herein shown will set the brakes in case of abroken axle, a broken journal, or a journal burned out, or in case of abroken arch bar, or in case of any other accident which would lower thetruck.

Having fully described my invention, what I claim as new and desire tosecure by Letters Patent, is,-

1. A safety appliance for railway trains comprising a plate attached toa car truck, an air-controlling valve mounted thereon, a pipe connectingsaidvalve with a train pipe, a rack bar slidably mounted on said plateand carrying an arm in proximity to the railway rail and extending abovethe rail, a piston in said valve, a lever fulcrumed on said valve andpivotally connected to said piston and projecting in the path of theteeth to be actuated by said teeth to open said valve, and means forguiding said rack bar in its vertical movement.

2. A safety appliance for railway trains comprising an air-controllingvalve connected to the train pipe system, an actuating memberoperatively connected to said valve to open said valve in case ofaccident and carrying an arm above a railway rail, means for elevatingsaid actuating member and holding the sameelevated after the opening ofsaid valve, and a rack on said. actuating member for holding the valveopen while elevated.

3. A safety appliance for railway trains comprising an air-controllingvalve connected to the train pipe system, an actuating memberoperatively connected to said valve for opening the same in case ofaccident and carrying an arm above the railway rail, a spring forelevating said actuating memher after the opening of said valve, andmeans for guiding said actuating member.

4. A safety appliance for railway trains comprising anair-controllingvalve connected to the train pipe system, a platecarrying said valve attached to the car truck, an actuating memberoperatively connected to said valve to open the same in case of accidentand having a dovetail connection with said plate and slidable verticallythereon and carrying an arm above and in proximity to a rail of therailway, a spring for elevating said actuating member after the openingof said valve, means for normally locking said spring compressed, andmeans carried by said actuating member for releasing said sprmg.

5. A safety appliance for railway trains comprising an air-controllingvalve connect ed to the train pipe system, a plate attached to the cartruck and carrying said valve, an actuating member slidable on saidplate and operatively connected to said valve to open the same in caseof accident, a spring mounted on said plate for elevating said actuatingmember after the opening of said valve, tripping devices pivotallymounted on said plate for normally locking said spring compressed, and ashoulder carried by said actuating member for disengaging said trippingdevices from said spring.

In testimony whereof, I set my hand in the presence of two witnesses,this 2nd day of May, 1910.

MARTIN E. TROUTT.

Witnesses:

A. L. J AOKSON, J. W. STEEL.

